https://github.com/jrincayc/ucblogo-code
Tip revision: 1da9cc2eb6b14a636c407a9262dcb36711682ed2 authored by Barak A. Pearlmutter on 31 March 2023, 13:44:18 UTC
log changes
log changes
Tip revision: 1da9cc2
dsetfirst
.SETFIRST list value
command. Changes the first member of "list" to be "value".
WARNING: Primitives whose names start with a period are DANGEROUS.
Their use by non-experts is not recommended. The use of .SETFIRST can
lead to circular list structures, which will get some Logo primitives
into infinite loops, and to unexpected changes to other data
structures that share storage with the list being modified.